From bd5daa08bda7f105317f5361267cd2fe3a263ea8 Mon Sep 17 00:00:00 2001
From: Kevin Larke <kevin@larke.org>
Date: Mon, 30 Mar 2015 13:06:48 -0700
Subject: [PATCH] cmMidi.h/c : Added pedal related functions and control codes.

---
 cmMidi.c | 26 +++++++++++++++++++++-----
 cmMidi.h | 12 +++++++++++-
 2 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/cmMidi.c b/cmMidi.c
index b3a7dd8..6a375c2 100644
--- a/cmMidi.c
+++ b/cmMidi.c
@@ -4,16 +4,12 @@
 #include "cmMidi.h"
 
 
-enum
-{
-  mdStatusDescLabelCharCnt = 5
-};
 
 typedef struct
 {
   cmMidiByte_t   status;
   cmMidiByte_t  byteCnt;
-  char     label[ mdStatusDescLabelCharCnt+1 ];
+  const char*     label;
 } cmMidiStatusDesc;
 
 cmMidiStatusDesc _cmMidiStatusDescArray[] =
@@ -72,6 +68,16 @@ cmMidiStatusDesc _cmMidiMetaStatusDescArray[] =
   { kInvalidMetaMdId, kInvalidMidiByte, "ERROR"}
 };
 
+cmMidiStatusDesc _cmMidiPedalLabel[] = 
+{
+  { kSustainCtlMdId,    0, "sustn" },
+  { kPortamentoCtlMdId, 0, "porta" },
+  { kSostenutoCtlMdId,  0, "sostn" },
+  { kSoftPedalCtlMdId,  0, "soft"  },
+  { kLegatoCtlMdId,     0, "legat" },
+  { kInvalidMidiByte, kInvalidMidiByte, "ERROR"}
+};
+
 //====================================================================================================
 
 const char* cmMidiStatusToLabel( cmMidiByte_t status )
@@ -102,6 +108,16 @@ const char*   cmMidiMetaStatusToLabel( cmMidiByte_t metaStatus )
   return _cmMidiMetaStatusDescArray[i].label; 
 }
 
+const char* cmMidiPedalLabel( cmMidiByte_t d0 )
+{
+  int i;
+  for(i=0; _cmMidiPedalLabel[i].status != kInvalidMidiByte; ++i)
+    if( _cmMidiPedalLabel[i].status == d0 )
+      break;
+
+  return _cmMidiPedalLabel[i].label;
+}
+
 cmMidiByte_t cmMidiStatusToByteCount( cmMidiByte_t status )
 {
   unsigned i;
diff --git a/cmMidi.h b/cmMidi.h
index fa1245e..51373d4 100644
--- a/cmMidi.h
+++ b/cmMidi.h
@@ -68,7 +68,11 @@ extern "C" {
     kSeqSpecMdId     = 0x7f,
     kInvalidMetaMdId = 0x80,
 
-    kSustainCtlMdId = 64
+    kSustainCtlMdId    = 0x40,
+    kPortamentoCtlMdId = 0x41,
+    kSostenutoCtlMdId  = 0x42,
+    kSoftPedalCtlMdId  = 0x43,
+    kLegatoCtlMdId     = 0x44
   
   };
 
@@ -89,8 +93,14 @@ extern "C" {
 #define cmMidiIsSustainPedalDown( s, d0, d1) ( cmMidiIsSustainPedal(s,d0) && (d1)>=64 )
 #define cmMidiIsSustainPedalUp(   s, d0, d1) ( cmMidiIsSustainPedal(s,d0) && (d1)<64 )
 
+#define cmMidiIsPedal(     s, d0 )      ( kCtlMdId <= (s) && (s) <= (kCtlMdId + kMidiChCnt) && (d0)>=kSustainCtlMdId && (d0)<=kLegatoCtlMdId )
+#define cmMidiIsPedalDown( s, d0, d1 )  ( cmMidiIsPedal(s,d0) && (d1)>=64 )
+#define cmMidiIsPedalUp(   s, d0, d1 )  ( cmMidiIsPedal(s,d0) && (d1)<64  )
+
+
   const char*   cmMidiStatusToLabel(     cmMidiByte_t status );
   const char*   cmMidiMetaStatusToLabel( cmMidiByte_t metaStatus );
+  const char*   cmMidiPedalLabel(        cmMidiByte_t d0 );
 
   // Returns kInvalidMidiByte if status is not a valid status byte
   cmMidiByte_t  cmMidiStatusToByteCount( cmMidiByte_t status );